Abstract
Recently, consumer products with complex idiosyncratic curved surfaces are becoming increasingly common in the market. It is now usual for designers of products such as cars and consumer electronic goods to use free-form surfaces that cannot be adequately represented in two-dimensional drawings. As a result, computers, especially three-dimensional CAD systems, have become essential design tools. Unfortunately, 3D CAD systems are still regarded as impossibly complicated by many designers. To address this problem, we have developed a 3D CAD system that makes it easy for designers to interactively create and modify the shapes that they have in mind. This system features high-quality modelling functions, can also produce rendered views of the models it generates, and incorporates a user-friendly interface that allows the designer to operate the system unaided. Compared to conventional design processes based on 2D drawings and fabrication of the mock-up products, this system provides an environment that can make great contributions to design work. This paper describes the functions and features of the system.
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